Remove question where-do-meteorites-come-from
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Likely energy source behind first life on Earth found ‘hiding in plain sight’

Frontiers

How it arose, and from what energy source, is of interest to everyone, because we humans like to know where we come from. There are many competing theories for how and where life arose. Credit: NOAA Office of Ocean Exploration (CC BY-SA 2.0). Life on Earth arose roughly four billion years ago.

Radiation 122
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Orange glow and plants below: Wildfire smoke’s impact on crops

HumanNature

Wells ( left ), an image from the 2020 movie Greenland ( top right ), and a photograph I took overlooking Horsetooth Reservoir during the 2020 Cameron Peak fire west of Fort Collins, Colorado (bottom right). My mind turns to images from sci-fi movies and artwork, not real life, when I think about the sky glowing orange.

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Concerning primordial black holes

Physics World

on 30 November 1954 when a lazy Alabama afternoon is suddenly arrested by a fireball noisily rending the air, burning so bright it’s visible from two neighbouring states as it streaks through the sky above Sylacauga. Hawking and Carr predicted that PBHs could have formed with a wide range of possible sizes, from as small as 10 ?

Radiation 116
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NASA craft provides an insight into Mars’ interior

Physics World

The seismic findings show that Mars’ core, where most of the planet’s heat originates from, is slightly larger than expected, with a radius of about 1800 km against the Mars’ full radius of 3390 km. This geodynamo somehow switched off when too much heat had leaked from the core. Mars presents unique questions,” says Cottaar.

Cooling 145
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A glassy solution to nuclear waste

Physics World

Indeed, samples excavated and analysed by archaeologists and scientists have enabled a better understanding of how and where glass production began. But the idea to transform nuclear waste into glass, or vitrify it, was developed as far back as the 1970s, as a way to keep the radioactive elements locked away and prevent them from leaking out.

Waste 106
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How Finance can help stop climate change: Green bonds

Edouard Stenger

As more and more institutions and people are divesting from fossil fuels globally, climate responsible finance is booming. Part of this revolution is the meteoritic growth of green bonds, which were started in 2007 by the World Bank and the European Investment Bank. Where is the money going? But what are they? Who is the issuer?